Apparatus for heating cars



(A0 Model.)

T. R. WHITE.

APPARATUS FOR HEATING CARS. H 3

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WI'INIEISSES:

i 2 UNITED STATES PATENT OFFICE.

THOMAS R. WHITE, OF BOSTON, MASSACHUSETTS.

APPARATUS FOR HEATING CARS.

SPECIFICATION forming part of Letters Patent No. 375,521, dated December2'7, 1887.

Applicatiou filed February .14, 1887. Serial 110.228.1369. (No model.) i

1 To aZZ whom it may concern:

Be it known that I, THOMAS E. WHITE, of Boston, in the county of Suffolkand State of Massachusetts, have invented a new and Improved Apparatusfor Heating Cars, of which the following is a full, clear, and exactdescription.

My invention will first be described, and then specifically pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a partofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a side elevation of the engine and the last car of a trainpartly broken away and in section, and Fig. 2 is a partial transversevertical section through a car heated by my improvements. Fig. 3 is alongitudinal section'through'a coupling employed in carrying out theinvention.

In carrying the invention into effect a vertical lever, a, is pivoted inthe smoke-boXA of i an engine,having pivotal connection at the upper endwith a damper, a, adapted to close the passageinto the smoke-stack, andsimilar attachment at its lower end with a damper, a", adapted to closeover. a collared aperture in the bottom of the smoke-box, which dampersare operated, the one to close and the other to open, through the mediumof a hand-lever, b, in the cab connected with the lever a in thesmoke-box above or below its fulcrum by a rod, b, as shown in Fig. 1.

A blower, B, is mountedin the cab of the engine, operated by a smallengine, B, or similar means, whereby air is supplied and equallydistributed to the fire through pipe connected with the said blower andarranged within the fire-box beneath the grate. Within the apertures inthe bottom of the smoke-box Aapipe or flue, D, is introduced, whichpipe. sur-' rounded by an outer and much larger pipe,I), is made toextend beneath the'engine, the projecting ends being provided with asection of coupling, 0, hereinafter described. Upon the same shaftoperating the blower B a second blower, E, is mounted, connectedwith thespace (1, intervening the inner pipe, D, and outer pipe, D, the purposeof which is to supply fresh air to the chamber thus formed, which air iskept constantly heated by the hot pro ducts of combustion passingthrough the interior pipe, D.

Similar pipes, D D, are held suspended centrally and longitudinallybeneath each car of a train,which pipes are adapted to be coupled toeachother and to the pipesof the engine in any suitable or approvedmanner.At regular intervals smaller semicircular pipes F are made to radiatefrom each side of the outer longitudinal pipes, D, and pass up throughthe floor of the car,preferably in front of each seat therein, asuitable register, 0, being made to cover the aperture formed by theentrance of the said pipes through the car-floor, as shown in Fig. 2. v

Upon the end of the pipes D and D, at the rear of the rear car of atrain, a baffle-tube,H, is coupled,which baffle-tube is providedat itsouter end with an inclosing-screen, h, and the under side of said tube,near the end, is pro vided with an aperture, h. The pipes may be coupledin any secure and well-known manner. In the drawings, however,apreferred form of coupling is illustrated in Fig. 3, in which it willbe seen that one inner pipe, D, is provided with an integral flaring,mouth, M, and the opposing pipe D with a slightly flaring attachedflexible packing, M. Thus when the two pipes are-brought together theone is firmly wedged in the other. The inner pipes are held in contactby the coupling 0 upon the outer pipes. This coupling is usuallyeffected by causing an interiorly-threaded ring, m, .provided with aseries of exterior knobs, m, to re- .volve freely upon a collar, mintegral with the outer 'end of one pipe, D, an equivalent collar, or,having a threaded outer surface, being formed in similar manner integralwith the opposing pipes D. When the two. pipes come together, the loosering m is made to engage and screw upon the threaded collar m ,whereby atight joint is effected.

The operation of the invention is as follows: Upon a fire being builtthe lower damper, a is closed and the upper damper, a, opened. Thisoperation restores the usual draft to the fire. When sufficient steamhas been generated to run the small engine B, and thereby the blowers Band E, the position of the dampers is reversed by means of the lever bfrom the cap,and all the products of combustion thereupon pass into thepipe D, draft being supplied the fire-box by means of the blower B,while the blower E constantly supplies fresh air to the chamberd,intervening the inner and outer pipe, D D. The hot products ofcombustion pass the length of the train, and upon reaching thebailie-tube H the smoke and gases pass off through the screen, the ashesand sparks falling between the track through the aperture h in saidbaflle-tube. The inner pipe, I), being heated to ahigh temperature bythe products of combustion passing through it, heats in turn the air inchamber d, which air, passing upward ,is delivered in the car throughregisters in front of each seat.

It will be observed that by the apparatus above described a train is notonly plentifully and economically heated without danger from fire, butthat fresh air is constantly supplied to each car, and the smoke, gases,and cinders from the engine so disposed of as not to annoy thepassengers.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a device for heating cars from the engine, the combination, withthe smoke-box of a locomotive, a Ilue leading from thence bcneath saidlocomotive and cars, and a lever pivoted in said smoke-box carryingdampers, whereby communication may be opened or closed between said flueand the smoke-box or said box and the stack, of a concentric tube,

also extending beneath the locomotive and cars, and a blower forintroducing air between said flue and tube and forcing the heated air tothe ears, substantially as herein set forth.

2. In a device for heating cars from the locomotive, the combination,with the smoke-box of a locomotive, and a flue leading from thencebeneath the locomotive and cars, said flue being provided at its extremeend with a baffletube, of a concentric tube, also extending beneath thelocomotive and cars, a blower adapted to introduce air between the flueand concentric tube, and a series of transverse smaller tubes connectedwith said concentric tube, adapted to convey heated air at intervalsinto the cars, substantially as shown and described, and for the purposeherein set forth.

3. In a device for heating cars from the 10- comotive, thecombination,with the smoke-box A, provided with dampers a a and a flue,D, leading from said smoke-box longitudinally a train,ol' the concentrictube D, an air-space, d, intervening said flue and tube, and a blowerconnected with said air-space, and a series of curved transverse tubes,F, uniting said airspace with the car, and registers 0, arranged abovesaid tubes F in front of the seat of a car, substantially as shown anddescribed, and for the purpose herein set forth.

THOMAS R. XVHITE.

Witnesses:

\VILLIALI A. GASTON, FREDERIC E. SNOW.

